#4540AD#4540AD

#4540AD is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.4% C 0.168 H 279.1°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#4540AD
RGB	rgb(69, 64, 173)
HSL	hsl(243, 46%, 46%)
HSV	hsv(243, 63%, 68%)
CMYK	cmyk(60.1%, 63%, 0%, 32.2%)
CIE-LAB	lab(33.88, 34.65, -57.77)
CIE-LCH	lch(33.88, 67.36, 300.96°)
OKLab	oklab(44.43% 0.0266 -0.1662)
OKLCH	oklch(44.43% 0.168 279.1)
XYZ	xyz(11.8281, 7.9483, 40.4379)
Luminance	0.0795 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4540AD #A8AD40

analogous

#4072AD #4540AD #7C40AD

triadic

#4540AD #AD4540 #40AD45

tetradic

#4540AD #AD4072 #A8AD40 #40AD7C

square

#4540AD #AD4072 #A8AD40 #40AD7C

split-complementary

#4540AD #AD7C40 #72AD40

monochromatic

#211F54 #332F80 #4540AD #6964C6 #9491D6

Accessibility & contrast

On white

8.11

#4540AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#4540AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4540AD

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4540AD	#FFFFFF	#000000	##FFFFFF
##4540AD	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B1

Deuteranopia (green-blind)

#004BAB

Tritanopia (blue-blind)

#005B70

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4540ad;
/* rgb */ color: rgb(69, 64, 173);
/* oklch */ color: oklch(44.4% 0.168 279.1);

Tailwind

colors: {
  custom: {
    50: '#8475c6',
    500: '#4540ad',
    950: '#000000',
  },
}

SCSS

$custom: #4540ad;
$custom-light: #8475c6;
$custom-dark: #000000;

JSON

{
  "hex": "#4540ad",
  "rgb": {
    "r": 69,
    "g": 64,
    "b": 173
  },
  "hsl": {
    "h": 242.752,
    "s": 45.992,
    "l": 46.471
  },
  "oklch": {
    "l": 0.44427,
    "c": 0.16829,
    "h": 279.1
  },
  "luminance": 0.07949
}

Semantic roles & 50–950 ramp

primary

#4540AD

secondary

#BFC287

accent

#D652D0

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4540AD

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →